Index - N
| need | Turtle.Prelude, Turtle |
| newline | Turtle.Pattern, Turtle |
| NewlineForbidden | |
| 1 (Type/Class) | Turtle.Line, Turtle |
| 2 (Data Constructor) | Turtle.Line, Turtle |
| nl | Turtle.Prelude, Turtle |
| NominalDiffTime | Turtle |
| noneOf | Turtle.Pattern, Turtle |
| nonexecutable | Turtle.Prelude, Turtle |
| nonreadable | Turtle.Prelude, Turtle |
| nonwritable | Turtle.Prelude, Turtle |
| notChar | Turtle.Pattern, Turtle |
| nub | Turtle.Prelude, Turtle |
| nubOn | Turtle.Prelude, Turtle |